77500505162 has 4 divisors (see below), whose sum is σ = 116250757746. Its totient is φ = 38750252580.

The previous prime is 77500505141. The next prime is 77500505171. The reversal of 77500505162 is 26150500577.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26150500577 = 1109 ⋅23580253.

It can be written as a sum of positive squares in only one way, i.e., 65153073001 + 12347432161 = 255251^2 + 111119^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19375126289 + ... + 19375126292.

Almost surely, 2^77500505162 is an apocalyptic number.

77500505162 is a deficient number, since it is larger than the sum of its proper divisors (38750252584).

77500505162 is a wasteful number, since it uses less digits than its factorization.

77500505162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38750252583.

The product of its (nonzero) digits is 73500, while the sum is 38.

The spelling of 77500505162 in words is "seventy-seven billion, five hundred million, five hundred five thousand, one hundred sixty-two".